Land-roller.



G. E. KARL.

LAND ROLLER.

APPLICATION FILED 11m12.191s.

Patented De.18,1917.

l zwar-azz" GEORGE n. manor BEREA, OHIO, AssfGNoRTomlin..nuivniiiu'ooifiiaeivm on BEREA;

. omda-CORPORATION on OHIO. Y, f.

l l LANDLROLLER.

1916. Sera1No.97,159.- K Y ToiaZZ whom z't may concern.' ,i

Be it known that I, GEORGE E. KARL, a

citizenof the United Statesfresident of, Ber-ea, county of Cuyahoga,andState of.Y Ohio, have invented a new and useful Iin;

provenient in Land-Rollers, of which the following 1s a specification,the principle of theV invention being herein explained and the best modein which I have contemplated applyiiig that principle, so as-todistinguish it from other inventions. v

My invention relates to land rollersand particularly to that classu ofrollers which are known aswater ballast rollers in which water lorsandis used as ballast, the subjectmatter con'stitutinga division oforiginal application Serial No. 46,484, filed by me"Y [treme inner ends5 ofthe bent portion off,l

" the shell and theV inner extremity G of the Y correspondingilai'ige.`This integral unionv August 20, 1915.

V'The object of the invention .is to provide a ballastrollerconstruction which will be eco-Vv nomical of manufacture andefficient in per` Jrorniance of its functions.'

The said invention consists"` of means hereinafter fully described andforth in the claims.

The annexed drawing kand the following description set forth in detailcertain means embodying my invention, the disclosed ciple of theinvention may be applied.v

In said annexed drawings Figure 1 represents an axial sectiongwith l.the handle omitted, of'a land .roller embodyingniy ,invention andshowing the parts thereof occupying the position assumed vprior to thecomplete assembling thereof.

Fig. 2 represents a section similar to that illustrated in Fig. l,showing the parts'in their final. or assembled position and also showingfragmentary 'portions ofthe handle in section. Y s

Fig. 3 represents upon an. enlarged scale i an axial section ofthefragmentary portion of the device, one end'of the axial shaft beingshown in elevation. Fig. 4c is a modification.

The illustrated tion` comprises an outer shell l of sheet metal bentinto cylindrical form and having its meeting vends welded yin the usual'manner.

Inset into each end of such shell is a head 2 consisting of a maincircular portion and particularly set v a peripheral-flange 3;k Theseheads areinset:` a distance such thatthe end portions` of theishellylforiginally extended beyond the outer extremities of the flangeswhereby suchshell end portions may be bent around and:

againstfthe innersurfaces` of the flanges,as

shown in Figs. 1 `and Such bending operation is performed by' they useof wellaplaneperpendicular to the shells axis and' spcification@Lettsratent. Barme@ Dlgifg; Original application filed August 20, 1915;Serial 1\1,'o.46,l84.v Divided. Vaiid'this applicationriled May 12,. I

located atpointsla intermediate'of theex.-

is preferably perfermedgby `spot 4welding art ,The jointforined. 'bythe'ishell 'and ratelyclainied tierein.'

, and-*byv means of suitableapparatus for this" purpose well-known tothosenskil-led inthe.

vThe centrali portion-of eacli li'ea'tlvisi"" formed with :a circularopening 7. through?,` which openings extend the vextremities ofv ani`axial shaft 8. AThese extremities arereducedf to forintwo shoulders@and-10, Figf; thel i shoulder' 9 being located linteriorly ,off the Ydrumvand the shoulderl0 exteriorly thereof. Theextreine en'd-poi'tio'nll'iscylindrical and forms a journal upon which the roller'beai'ings 120ithe'handle revolve. These bearings are heldin place by means of asuitable washer 14 itself secured in place4 by meansof a Cotter pin 1.5.The inner ends of the rollers are adjacent to the shoulder 10.1

That portion of the end, naitfof veach shaft intermediate oftheshoulders L9 landi engaged upon the outside of -thehead` byl a nut-17.if Adjacent to the shoulder^9 isa y l0 is provided with a4thre'adltiwhicha-"is .i "f

separating washer 1S and"betwee'nl"thisl washer Vvand lthe` head -is'located ai*'packingv ringl9. y ,l u

The distance between the two shoulders 9,9,of the shaft is'inade'le'ssthan the dis'i! tance lbetween the central portion of the as shown inFig. 1, that is when the heads are in a state of internal rest.

The parts are completely assembled by screwing up the nuts 17 againstthe outside so as to cause the Washers 18 to engage the shoulders 9.also to compress the packing ring 19 so as to leffect a water-tightjoint and also flex the headsinwardly, as

, also imparts an impression of looseness and vweakness to thestructure.

especially Vapparent in the case of water- -ballast rollers and wherethe interior is not laterally against these heads.

This flexing is completely lilled with water and where, therefore, thelatter is permitted to move This flexing movement furthermore tends toweakeny the metal of the joints effected between it and the shell.

In the above-described` manner, therefore,

r :I'obt'ain a very simple and rigid construction without undulyincreasing the thickness of the heads.

vl/.Vhilc I have shown heads which are in a dished or bent form beforeassembling *Y the parts, it will be understood that they may beoriginally perfectly flat, as shown in dotted lines 'm the drawing, asindicated in Fig; 2 assuming a dished form afterv assembly, the shaft 8ybeing suit- .ablyY designed to meet these conditions,

especially in so far as relates to the. position of the shoulders 9.

It.v will also be obvious tol those skilled intlie art,.that theabove-described principl'e of construction may be applied to a landroller in which the heads, after the parts are all assembled and securedto each other, willbe curved in the direction opposite from that shownin the drawings,

that. is, whereas the drawings show concave heads, convex heads: may beformed if desired, either before or after assembling as: indicated inFig. 4:.

Having' fullyv described my invention,

' Ywhat I claim; and desire to secure by Letters; Patent is,:- 'Y v In.a land roller, the combination of a cylindrical shell; two end-headssecured in Copies oi thisfpatent may be obtained. for

the ends respectively of said shell; shaft 2. In a land roller, thecombination of a` cylindrical shell; two end heads secured in theendsrespectively of said shell; a shaft extending through said heads andhaving its ends threaded and reduced so as to form two shoulders locatedinteriorly of the heads and adjacent thereto; separating and packingmeans intermediate ofsaid shoulders and heads, and nuts on said threadedends of the shaft and on the exterior of said heads respectively,engaging the latter and clamping saine against said separating andpacking means; the said shoulders loeing located a distance from saidheads such that said nuts set up a condition of tension in the headswhen the parts are clamped together by said nuts.

3. In a land roller, the combination, of a cylindrical shell; two endheads *securedr in the ends respectively of said shell; a

shaft extending through said heads andV having its ends 'threaded andreduced. so as to form two shoulders located interiorly of the heads andadjacent thereto; separating and packing means intermediate of saidshoulders and heads, and nuts on said lthreaded ends of the shaft and onthe extet; In a land roller, the combination of a` smooth cylindricalmetallic shell, provided with iiiturned ends, iiangcd heads engagingsaid inturned ends, said heads being provided each with a perforation, ashaft passing through said perforation, and means upon the shaft toapply force to said heads to tend to iiex them, whereby the tension offlexure is made effective against the ends of the shell.

5. In a land roller, the combination of a smooth cylindrical metallicyshell, provided with inturned ends, flanged heads engaging said ends,said flanges being also welded to the shell,l said heads being providedeach with a perforation, a shaft passing through saidperforation, andmeans upon the shaft to apply force to said heads to tend toy flex them,whereby the tension of flexure is viio made effective lagainstthe endsof thek shell. Signed by me, this 24th day of February,

1916,. i GERGE E. KARL.

ve cents each, by addressing the (Zomiiiissimier of Patents, Washington,D. C.

